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Author Question: The period-luminosity relationship is primarily used for main-sequence stars. a. True b. False ... (Read 55 times)

ARLKQ

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on: Jul 27, 2018
The period-luminosity relationship is primarily used for main-sequence stars.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

The interstellar medium is made of ______________.
 
  a. gas b. dust
  c. gas and dust d. None of these choices are correct.


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SAUXC

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Reply #1 on: Jul 27, 2018
Answer to Question 1

False

Answer to Question 2

c


ARLKQ

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Reply #2 on: Jul 27, 2018
TY


SAUXC

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Reply #3 on: Jul 27, 2018
You're welcome


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